The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 14, 2021
Filed:
Oct. 23, 2017
Soonchunhyang University Industry Academy Cooperation Foundation, Asan, KR;
Dal Ahn, Cheonan, KR;
Kwan-Sun Choi, Seoul, KR;
Jong-Sik Lim, Daejeon, KR;
Sang-Min Han, Suwon, KR;
Sung-Min Kim, Yongin, KR;
You-Na Jang, Asan, KR;
Dae-Ung Lee, Gwangyang, KR;
Jun-Seok Oh, Incheon, KR;
Seo Koo, Asan, KR;
Tae-Hoon Kang, Bucheon, KR;
Ji-Won Kim, Pyeongtaek, KR;
Ik-Soo Jang, Seongnam, KR;
Abstract
The present invention relates to a Doherty combiner used in a Doherty power amplifier, the Doherty combiner comprising: a phase shift section connected to one end of a carrier amplifier so as to change a phase of an RF signal output from the carrier amplifier; a matching section connected to an output terminal of the Doherty power amplifier so as to impedance-match an output of the Doherty power amplifier; and a bandwidth improvement section connected to one end of a peaking amplifier so as to change at least one of a phase bandwidth and an amplitude bandwidth of the Doherty power amplifier.